The lithium-titanate or lithium-titanium-oxide (LTO) battery is a type of rechargeable battery which has the advantage of being faster to charge than other lithium-ion batteries, but the disadvantage of having a much lower energy density.

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A lithium-titanate battery is a modified lithium-ion battery that uses lithium-titanate nanocrystals, instead of carbon, on the surface of its anode. This gives the anode a surface area of about 100 square meters per gram, compared with 3 square meters per gram for carbon, allowing electrons to enter and leave the anode quickly. This makes fast recharging possible and provides high currents when needed. Lithium-titanate cells also last for 3000 to 7000 charge cycles; one source claims a cycle life of ~1000 cycles before reaching 80% capacity when charged and discharged at 55 °C (131 °F), rather than the standard 25 °C (77 °F).

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